OSI Detail Flashcards

1
Q

What Layer of the OSI Model?

Data type occurs as bits. Cables, Wireless, Hubs, Access Points. No logic or decision-making.

A

Layer 1 - Physical

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2
Q

What Layer of the OSI Model?

Packing bits into frames and transmitting. MAC addresses, flow control. NICS, Bridges, Switches

A

Layer 2 - Data Link Layer

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3
Q

What Layer of the OSI Model?

Concerned with routing and forwarding logical addresses. Protocols and devices, multi-layer switches. IPv4, IPv6, ICMP.

A

Layer 3 -Network Layer

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4
Q

What Layer of the OSI Model?

Dividing line between the upper layers and the lower layers of the OSI model. TCP, UDP, WAN accelerators, load balancers and firewalls

A

Layer 4 - Transport Layer

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5
Q

What Layer of the OSI Model?

Manages sessions, setting up, maintaining, tearing down. Real-Time Transport Protocol. NetBIOS

A

Layer 5 - Session Layer

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6
Q

What Layer of the OSI Model?

Data formatting, ASCII, GIFs, JPEG, etc.. Encryption, HTML XML, VIDEO

A

Layer 6 - Presentation Layer

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7
Q

What Layer of the OSI Model?

Lower level apps, file and network transfer, pop3, smtp, http, dns, ssh, snmp

A

Layer 7 - Application Layer

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8
Q

OSI

Encapsulation

A

Moving down Layer 7 to 1

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9
Q

OSI

Decapsulation

A

Moving up from Layer 1 to 7

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